1203405672 has 64 divisors (see below), whose sum is σ = 3511480320. Its totient is φ = 336512448.

The previous prime is 1203405661. The next prime is 1203405683. The reversal of 1203405672 is 2765043021.

It is an interprime number because it is at equal distance from previous prime (1203405661) and next prime (1203405683).

It is a super-2 number, since 2×1203405672² = 2896370422803543168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68308 + ... + 84099.

It is an arithmetic number, because the mean of its divisors is an integer number (54866880).

Almost surely, 2^1203405672 is an apocalyptic number.

1203405672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1203405672 is an abundant number, since it is smaller than the sum of its proper divisors (2308074648).

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

1203405672 is a wasteful number, since it uses less digits than its factorization.

1203405672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152470 (or 152466 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1203405672 is about 34690.1379645570. The cubic root of 1203405672 is about 1063.6629159085.

Adding to 1203405672 its reverse (2765043021), we get a palindrome (3968448693).

The spelling of 1203405672 in words is "one billion, two hundred three million, four hundred five thousand, six hundred seventy-two".