1072743400 has 48 divisors (see below), whose sum is σ = 2497831200. Its totient is φ = 428460480.

The previous prime is 1072743389. The next prime is 1072743421. The reversal of 1072743400 is 43472701.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144991 + ... + 152209.

It is an arithmetic number, because the mean of its divisors is an integer number (52038150).

Almost surely, 2^1072743400 is an apocalyptic number.

1072743400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1072743400 is an abundant number, since it is smaller than the sum of its proper divisors (1425087800).

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

1072743400 is a wasteful number, since it uses less digits than its factorization.

1072743400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7978 (or 7969 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 1072743400 is about 32752.7617156172. The cubic root of 1072743400 is about 1023.6825111316.

The spelling of 1072743400 in words is "one billion, seventy-two million, seven hundred forty-three thousand, four hundred".