425440074 has 32 divisors (see below), whose sum is σ = 860126400. Its totient is φ = 140280192.

The previous prime is 425440073. The next prime is 425440117. The reversal of 425440074 is 470044524.

It is not an unprimeable number, because it can be changed into a prime (425440073) 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, 286137 + ... + 287619.

It is an arithmetic number, because the mean of its divisors is an integer number (26878950).

Almost surely, 2^425440074 is an apocalyptic number.

425440074 is an abundant number, since it is smaller than the sum of its proper divisors (434686326).

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

425440074 is a wasteful number, since it uses less digits than its factorization.

425440074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974.

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 425440074 is about 20626.1987288012. The cubic root of 425440074 is about 752.1067132494.

Adding to 425440074 its reverse (470044524), we get a palindrome (895484598).

The spelling of 425440074 in words is "four hundred twenty-five million, four hundred forty thousand, seventy-four".