1409459136 has 84 divisors (see below), whose sum is σ = 3898663272. Its totient is φ = 449360384.

The previous prime is 1409459123. The next prime is 1409459287. The reversal of 1409459136 is 6319549041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94630 + ... + 108506.

It is an arithmetic number, because the mean of its divisors is an integer number (46412658).

Almost surely, 2^1409459136 is an apocalyptic number.

1409459136 is a gapful number since it is divisible by the number (16) 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 1409459136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1949331636).

1409459136 is an abundant number, since it is smaller than the sum of its proper divisors (2489204136).

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

1409459136 is a wasteful number, since it uses less digits than its factorization.

1409459136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13938 (or 13905 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1409459136 is about 37542.7640964274. The cubic root of 1409459136 is about 1121.2027725013.

The spelling of 1409459136 in words is "one billion, four hundred nine million, four hundred fifty-nine thousand, one hundred thirty-six".