1249464040 has 32 divisors (see below), whose sum is σ = 3066867360. Its totient is φ = 454350400.

The previous prime is 1249464017. The next prime is 1249464091. The reversal of 1249464040 is 404649421.

It is a super-2 number, since 2×1249464040² = 3122320774506243200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1249463987 and 1249464005.

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, 1419406 + ... + 1420285.

It is an arithmetic number, because the mean of its divisors is an integer number (95839605).

Almost surely, 2^1249464040 is an apocalyptic number.

1249464040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1249464040 is an abundant number, since it is smaller than the sum of its proper divisors (1817403320).

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

1249464040 is a wasteful number, since it uses less digits than its factorization.

1249464040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839713 (or 2839709 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 1249464040 is about 35347.7586276697. The cubic root of 1249464040 is about 1077.0633642310.

The spelling of 1249464040 in words is "one billion, two hundred forty-nine million, four hundred sixty-four thousand, forty".