49421240 has 48 divisors (see below), whose sum is σ = 122237640. Its totient is φ = 17969600.

The previous prime is 49421237. The next prime is 49421257. The reversal of 49421240 is 4212494.

49421240 = 1750² + 1751² + ... + 1765².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266 + ... + 9945.

Almost surely, 2^49421240 is an apocalyptic number.

49421240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49421240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61118820).

49421240 is an abundant number, since it is smaller than the sum of its proper divisors (72816400).

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

49421240 is a wasteful number, since it uses less digits than its factorization.

49421240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10244 (or 10229 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 49421240 is about 7030.0241820352. The cubic root of 49421240 is about 366.9761830971.

The spelling of 49421240 in words is "forty-nine million, four hundred twenty-one thousand, two hundred forty".