1453973400 has 144 divisors (see below), whose sum is σ = 5326902360. Its totient is φ = 352473600.

The previous prime is 1453973393. The next prime is 1453973419. The reversal of 1453973400 is 43793541.

1453973400 is a `hidden beast` number, since 14 + 539 + 73 + 40 + 0 = 666.

It is a super-2 number, since 2×1453973400² = 4228077295815120000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16917 + ... + 56516.

Almost surely, 2^1453973400 is an apocalyptic number.

1453973400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453973400 is an abundant number, since it is smaller than the sum of its proper divisors (3872928960).

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

1453973400 is a wasteful number, since it uses less digits than its factorization.

1453973400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73466 (or 73454 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 1453973400 is about 38131.0031339329. The cubic root of 1453973400 is about 1132.8841145467.

The spelling of 1453973400 in words is "one billion, four hundred fifty-three million, nine hundred seventy-three thousand, four hundred".