949139520 has 112 divisors (see below), whose sum is σ = 3444044928. Its totient is φ = 216944640.

The previous prime is 949139519. The next prime is 949139533. The reversal of 949139520 is 25931949.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63901 + ... + 77340.

Almost surely, 2^949139520 is an apocalyptic number.

It is an amenable number.

949139520 is an abundant number, since it is smaller than the sum of its proper divisors (2494905408).

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

949139520 is a wasteful number, since it uses less digits than its factorization.

949139520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141268 (or 141258 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 949139520 is about 30808.1080237005. The cubic root of 949139520 is about 982.7506783519.

The spelling of 949139520 in words is "nine hundred forty-nine million, one hundred thirty-nine thousand, five hundred twenty".