1453203040 has 48 divisors (see below), whose sum is σ = 3491404560. Its totient is φ = 571425280.

The previous prime is 1453203029. The next prime is 1453203041. The reversal of 1453203040 is 403023541.

It is a super-2 number, since 2×1453203040² = 4223598150930483200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453203041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67531 + ... + 86410.

It is an arithmetic number, because the mean of its divisors is an integer number (72737595).

Almost surely, 2^1453203040 is an apocalyptic number.

1453203040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453203040 is an abundant number, since it is smaller than the sum of its proper divisors (2038201520).

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

1453203040 is a wasteful number, since it uses less digits than its factorization.

1453203040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154015 (or 154007 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1453203040 is about 38120.9003041639. The cubic root of 1453203040 is about 1132.6840002060.

Adding to 1453203040 its reverse (403023541), we get a palindrome (1856226581).

The spelling of 1453203040 in words is "one billion, four hundred fifty-three million, two hundred three thousand, forty".