49322440 has 32 divisors (see below), whose sum is σ = 117505080. Its totient is φ = 18568192.

The previous prime is 49322437. The next prime is 49322447. The reversal of 49322440 is 4422394.

It can be written as a sum of positive squares in 4 ways, for example, as 48358116 + 964324 = 6954^2 + 982^2 .

It is a junction number, because it is equal to n+sod(n) for n = 49322399 and 49322408.

It is not an unprimeable number, because it can be changed into a prime (49322447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35587 + ... + 36946.

Almost surely, 2^49322440 is an apocalyptic number.

49322440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49322440 is an abundant number, since it is smaller than the sum of its proper divisors (68182640).

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

49322440 is a wasteful number, since it uses less digits than its factorization.

49322440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72561 (or 72557 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 49322440 is about 7022.9936636736. The cubic root of 49322440 is about 366.7314743115.

The spelling of 49322440 in words is "forty-nine million, three hundred twenty-two thousand, four hundred forty".