1047454540 has 48 divisors (see below), whose sum is σ = 2404007424. Its totient is φ = 380196800.

The previous prime is 1047454493. The next prime is 1047454543. The reversal of 1047454540 is 454547401.

It is a super-2 number, since 2×1047454540² = 2194322026733223200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1047454496 and 1047454505.

It is not an unprimeable number, because it can be changed into a prime (1047454543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125085 + ... + 133195.

It is an arithmetic number, because the mean of its divisors is an integer number (50083488).

Almost surely, 2^1047454540 is an apocalyptic number.

1047454540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1047454540 is an abundant number, since it is smaller than the sum of its proper divisors (1356552884).

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

1047454540 is a wasteful number, since it uses less digits than its factorization.

1047454540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8718 (or 8716 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 34.

The square root of 1047454540 is about 32364.4023581465. The cubic root of 1047454540 is about 1015.5743600660.

The spelling of 1047454540 in words is "one billion, forty-seven million, four hundred fifty-four thousand, five hundred forty".