48135440 has 40 divisors (see below), whose sum is σ = 112278528. Its totient is φ = 19191680.

The previous prime is 48135431. The next prime is 48135469. The reversal of 48135440 is 4453184.

It is a tau number, because it is divible by the number of its divisors (40).

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, 29855 + ... + 31425.

Almost surely, 2^48135440 is an apocalyptic number.

48135440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48135440 is an abundant number, since it is smaller than the sum of its proper divisors (64143088).

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

48135440 is a wasteful number, since it uses less digits than its factorization.

48135440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967 (or 1961 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 48135440 is about 6937.9708849202. The cubic root of 48135440 is about 363.7656181420.

The spelling of 48135440 in words is "forty-eight million, one hundred thirty-five thousand, four hundred forty".