154028690 has 16 divisors (see below), whose sum is σ = 277394328. Its totient is φ = 61579776.

The previous prime is 154028671. The next prime is 154028701. The reversal of 154028690 is 96820451.

It can be written as a sum of positive squares in 4 ways, for example, as 108722329 + 45306361 = 10427^2 + 6731^2 .

It is a super-2 number, since 2×154028690² = 47449674686232200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 154028690.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31874 + ... + 36386.

Almost surely, 2^154028690 is an apocalyptic number.

154028690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154028690 is a deficient number, since it is larger than the sum of its proper divisors (123365638).

154028690 is a wasteful number, since it uses less digits than its factorization.

154028690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7933.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 154028690 is about 12410.8295451996. The cubic root of 154028690 is about 536.0441250709.

The spelling of 154028690 in words is "one hundred fifty-four million, twenty-eight thousand, six hundred ninety".