155428976 has 40 divisors (see below), whose sum is σ = 308273424. Its totient is φ = 75893760.

The previous prime is 155428967. The next prime is 155428979. The reversal of 155428976 is 679824551.

155428976 = T₁ + T₂ + ... + T₉₇₆.

It is a happy number.

155428976 is a nontrivial binomial coefficient, being equal to C(978, 3).

It is a self number, because there is not a number n which added to its sum of digits gives 155428976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155428979) by changing a digit.

It is the 976-th tetrahedral 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, 158600 + ... + 159576.

Almost surely, 2^155428976 is an apocalyptic number.

155428976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155428976 is a deficient number, since it is larger than the sum of its proper divisors (152844448).

155428976 is a wasteful number, since it uses less digits than its factorization.

155428976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209 (or 1203 counting only the distinct ones).

The product of its digits is 604800, while the sum is 47.

The square root of 155428976 is about 12467.1157851365. The cubic root of 155428976 is about 537.6636326028.

The spelling of 155428976 in words is "one hundred fifty-five million, four hundred twenty-eight thousand, nine hundred seventy-six".