49257490 has 16 divisors (see below), whose sum is σ = 92518848. Its totient is φ = 18846256.

The previous prime is 49257487. The next prime is 49257497. The reversal of 49257490 is 9475294.

It is a super-2 number, since 2×49257490² = 4852600642200200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49257497) 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, 106852 + ... + 107311.

It is an arithmetic number, because the mean of its divisors is an integer number (5782428).

Almost surely, 2^49257490 is an apocalyptic number.

49257490 is a deficient number, since it is larger than the sum of its proper divisors (43261358).

49257490 is a wasteful number, since it uses less digits than its factorization.

49257490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214193.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 49257490 is about 7018.3680439259. The cubic root of 49257490 is about 366.5704274512.

The spelling of 49257490 in words is "forty-nine million, two hundred fifty-seven thousand, four hundred ninety".