15674245440 has 336 divisors, whose sum is σ = 58992406272. Its totient is φ = 3514527744.

The previous prime is 15674245439. The next prime is 15674245541. The reversal of 15674245440 is 4454247651.

It is a tau number, because it is divible by the number of its divisors (336).

It is a super-2 number, since 2×15674245440² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 15674245392 and 15674245401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2489977 + ... + 2496263.

Almost surely, 2^15674245440 is an apocalyptic number.

15674245440 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 15674245440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29496203136).

15674245440 is an abundant number, since it is smaller than the sum of its proper divisors (43318160832).

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

15674245440 is a wasteful number, since it uses less digits than its factorization.

15674245440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6374 (or 6357 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 42.

The spelling of 15674245440 in words is "fifteen billion, six hundred seventy-four million, two hundred forty-five thousand, four hundred forty".