7149868 has 24 divisors (see below), whose sum is σ = 13970880. Its totient is φ = 3173520.

The previous prime is 7149851. The next prime is 7149899. The reversal of 7149868 is 8689417.

It is a super-2 number, since 2×7149868² = 102241224834848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3 + ... + 3781.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

Almost surely, 2^7149868 is an apocalyptic number.

It is an amenable number.

7149868 is a deficient number, since it is larger than the sum of its proper divisors (6821012).

7149868 is a wasteful number, since it uses less digits than its factorization.

7149868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3837 (or 3835 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 7149868 is about 2673.9237087097. The cubic root of 7149868 is about 192.6486668502.

It can be divided in two parts, 7 and 149868, that multiplied together give a triangular number (1049076 = T₁₄₄₈).

The spelling of 7149868 in words is "seven million, one hundred forty-nine thousand, eight hundred sixty-eight".