1042623549 has 32 divisors (see below), whose sum is σ = 1784177280. Its totient is φ = 594720000.

The previous prime is 1042623503. The next prime is 1042623553. The reversal of 1042623549 is 9453262401.

It is a happy number.

1042623549 is a `hidden beast` number, since 10 + 42 + 62 + 3 + 549 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1042623549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042623749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98202 + ... + 108299.

It is an arithmetic number, because the mean of its divisors is an integer number (55755540).

Almost surely, 2^1042623549 is an apocalyptic number.

It is an amenable number.

1042623549 is a deficient number, since it is larger than the sum of its proper divisors (741553731).

1042623549 is a wasteful number, since it uses less digits than its factorization.

1042623549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206538 (or 206532 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1042623549 is about 32289.6817729751. The cubic root of 1042623549 is about 1014.0106350203.

The spelling of 1042623549 in words is "one billion, forty-two million, six hundred twenty-three thousand, five hundred forty-nine".