4074992640 has 264 divisors, whose sum is σ = 14224324608. Its totient is φ = 1078640640.

The previous prime is 4074992629. The next prime is 4074992657. The reversal of 4074992640 is 462994704.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8801049 + ... + 8801511.

Almost surely, 2^4074992640 is an apocalyptic number.

4074992640 is a gapful number since it is divisible by the number (40) 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 4074992640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7112162304).

4074992640 is an abundant number, since it is smaller than the sum of its proper divisors (10149331968).

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

4074992640 is a wasteful number, since it uses less digits than its factorization.

4074992640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 4074992640 is about 63835.6690260234. The cubic root of 4074992640 is about 1597.2599770165.

The spelling of 4074992640 in words is "four billion, seventy-four million, nine hundred ninety-two thousand, six hundred forty".