1008949542 has 16 divisors (see below), whose sum is σ = 2023619760. Its totient is φ = 335363072.

The previous prime is 1008949537. The next prime is 1008949561. The reversal of 1008949542 is 2459498001.

It is a junction number, because it is equal to n+sod(n) for n = 1008949494 and 1008949503.

It is a congruent number.

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, 236067 + ... + 240302.

It is an arithmetic number, because the mean of its divisors is an integer number (126476235).

Almost surely, 2^1008949542 is an apocalyptic number.

1008949542 is an abundant number, since it is smaller than the sum of its proper divisors (1014670218).

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

1008949542 is a wasteful number, since it uses less digits than its factorization.

1008949542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476727.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 1008949542 is about 31763.9660936729. The cubic root of 1008949542 is about 1002.9743252849.

The spelling of 1008949542 in words is "one billion, eight million, nine hundred forty-nine thousand, five hundred forty-two".