7263428 has 12 divisors (see below), whose sum is σ = 12742800. Its totient is φ = 3622632.

The previous prime is 7263419. The next prime is 7263439. The reversal of 7263428 is 8243627.

It is a super-2 number, since 2×7263428² = 105514772622368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7263394 and 7263403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278 + ... + 3821.

It is an arithmetic number, because the mean of its divisors is an integer number (1061900).

Almost surely, 2^7263428 is an apocalyptic number.

It is an amenable number.

7263428 is a deficient number, since it is larger than the sum of its proper divisors (5479372).

7263428 is a wasteful number, since it uses less digits than its factorization.

7263428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546 (or 4544 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 7263428 is about 2695.0747670519. The cubic root of 7263428 is about 193.6632482941.

The spelling of 7263428 in words is "seven million, two hundred sixty-three thousand, four hundred twenty-eight".