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120407040 = 2103351367
BaseRepresentation
bin1110010110101…
…00010000000000
322101120022102000
413023110100000
5221311011130
615540424000
72661304635
oct713242000
9271508360
10120407040
1161a6a656
12343a8000
131bc3a290
1411dc418c
15a886260
hex72d4400

120407040 has 352 divisors, whose sum is σ = 467698560. Its totient is φ = 29196288.

The previous prime is 120407033. The next prime is 120407041. The reversal of 120407040 is 40704021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120407041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1797087 + ... + 1797153.

Almost surely, 2120407040 is an apocalyptic number.

120407040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120407040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233849280).

120407040 is an abundant number, since it is smaller than the sum of its proper divisors (347291520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120407040 is a wasteful number, since it uses less digits than its factorization.

120407040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 120407040 is about 10973.0141711382. The cubic root of 120407040 is about 493.7994782441.

The spelling of 120407040 in words is "one hundred twenty million, four hundred seven thousand, forty".