190401628 has 12 divisors (see below), whose sum is σ = 343951552. Its totient is φ = 92129760.

The previous prime is 190401553. The next prime is 190401647. The reversal of 190401628 is 826104091.

It is a happy number.

190401628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 190401628.

It is a congruent number.

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, 767625 + ... + 767872.

Almost surely, 2^190401628 is an apocalyptic number.

It is an amenable number.

190401628 is a deficient number, since it is larger than the sum of its proper divisors (153549924).

190401628 is a wasteful number, since it uses less digits than its factorization.

190401628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535532 (or 1535530 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 190401628 is about 13798.6096401050. The cubic root of 190401628 is about 575.2944961499.

The spelling of 190401628 in words is "one hundred ninety million, four hundred one thousand, six hundred twenty-eight".