40426972434 has 96 divisors (see below), whose sum is σ = 94481697024. Its totient is φ = 12447590400.

The previous prime is 40426972381. The next prime is 40426972441. The reversal of 40426972434 is 43427962404.

It is a self number, because there is not a number n which added to its sum of digits gives 40426972434.

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, 3555859 + ... + 3567209.

It is an arithmetic number, because the mean of its divisors is an integer number (984184344).

Almost surely, 2^40426972434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40426972434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47240848512).

40426972434 is an abundant number, since it is smaller than the sum of its proper divisors (54054724590).

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

40426972434 is a wasteful number, since it uses less digits than its factorization.

40426972434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11592 (or 11589 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 40426972434 in words is "forty billion, four hundred twenty-six million, nine hundred seventy-two thousand, four hundred thirty-four".