190455030 has 32 divisors (see below), whose sum is σ = 507880800. Its totient is φ = 50787936.

The previous prime is 190454989. The next prime is 190455047. The reversal of 190455030 is 30554091.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 190454985 and 190455003.

It is a congruent number.

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, 352425 + ... + 352964.

It is an arithmetic number, because the mean of its divisors is an integer number (15871275).

Almost surely, 2^190455030 is an apocalyptic number.

190455030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190455030 is an abundant number, since it is smaller than the sum of its proper divisors (317425770).

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

190455030 is a wasteful number, since it uses less digits than its factorization.

190455030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705405 (or 705399 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 190455030 is about 13800.5445544732. The cubic root of 190455030 is about 575.3482754606.

The spelling of 190455030 in words is "one hundred ninety million, four hundred fifty-five thousand, thirty".