40890296832 has 160 divisors (see below), whose sum is σ = 135814593024. Its totient is φ = 10620825600.

The previous prime is 40890296831. The next prime is 40890296851. The reversal of 40890296832 is 23869209804.

It is not an unprimeable number, because it can be changed into a prime (40890296831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54594 + ... + 291137.

Almost surely, 2^40890296832 is an apocalyptic number.

40890296832 is a gapful number since it is divisible by the number (42) 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 40890296832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67907296512).

40890296832 is an abundant number, since it is smaller than the sum of its proper divisors (94924296192).

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

40890296832 is a wasteful number, since it uses less digits than its factorization.

40890296832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345770 (or 345754 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 40890296832 in words is "forty billion, eight hundred ninety million, two hundred ninety-six thousand, eight hundred thirty-two".