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400672039 = 4714595843
BaseRepresentation
bin10111111000011…
…100010100100111
31000220221020201011
4113320130110213
51310033001124
6103431443051
712633441025
oct2770342447
91026836634
10400672039
11196194919
12b2226487
1365018461
143b2db715
1525297994
hex17e1c527

400672039 has 8 divisors (see below), whose sum is σ = 409547520. Its totient is φ = 391811256.

The previous prime is 400672021. The next prime is 400672043. The reversal of 400672039 is 930276004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400672039 - 29 = 400671527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400672039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400672639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65652 + ... + 71494.

It is an arithmetic number, because the mean of its divisors is an integer number (51193440).

Almost surely, 2400672039 is an apocalyptic number.

400672039 is a deficient number, since it is larger than the sum of its proper divisors (8875481).

400672039 is a wasteful number, since it uses less digits than its factorization.

400672039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7349.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 400672039 is about 20016.7939241028. The cubic root of 400672039 is about 737.2187043283.

The spelling of 400672039 in words is "four hundred million, six hundred seventy-two thousand, thirty-nine".

Divisors: 1 47 1459 5843 68573 274621 8524937 400672039