49403240 has 32 divisors (see below), whose sum is σ = 114993000. Its totient is φ = 19079424.

The previous prime is 49403219. The next prime is 49403257. The reversal of 49403240 is 4230494.

It can be written as a sum of positive squares in 4 ways, for example, as 30758116 + 18645124 = 5546^2 + 4318^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20135 + ... + 22454.

Almost surely, 2^49403240 is an apocalyptic number.

49403240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49403240 is an abundant number, since it is smaller than the sum of its proper divisors (65589760).

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

49403240 is a wasteful number, since it uses less digits than its factorization.

49403240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42629 (or 42625 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 49403240 is about 7028.7438422523. The cubic root of 49403240 is about 366.9316248369.

The spelling of 49403240 in words is "forty-nine million, four hundred three thousand, two hundred forty".