42400948 has 12 divisors (see below), whose sum is σ = 74414340. Its totient is φ = 21139712.

The previous prime is 42400921. The next prime is 42400949. The reversal of 42400948 is 84900424.

It can be written as a sum of positive squares in 2 ways, for example, as 32741284 + 9659664 = 5722^2 + 3108^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42400949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13603 + ... + 16426.

It is an arithmetic number, because the mean of its divisors is an integer number (6201195).

Almost surely, 2^42400948 is an apocalyptic number.

It is an amenable number.

42400948 is a deficient number, since it is larger than the sum of its proper divisors (32013392).

42400948 is a wasteful number, since it uses less digits than its factorization.

42400948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30386 (or 30384 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 42400948 is about 6511.6010320043. The cubic root of 42400948 is about 348.7052790555.

The spelling of 42400948 in words is "forty-two million, four hundred thousand, nine hundred forty-eight".