1900349641 has 8 divisors (see below), whose sum is σ = 2027980800. Its totient is φ = 1774479168.

The previous prime is 1900349629. The next prime is 1900349669. The reversal of 1900349641 is 1469430091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1900349641 - 2⁷ = 1900349513 is a prime.

It is a super-2 number, since 2×1900349641² = 7222657516097657762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1900349641.

It is not an unprimeable number, because it can be changed into a prime (1900359641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437941 + ... + 442258.

It is an arithmetic number, because the mean of its divisors is an integer number (253497600).

Almost surely, 2^1900349641 is an apocalyptic number.

It is an amenable number.

1900349641 is a deficient number, since it is larger than the sum of its proper divisors (127631159).

1900349641 is a wasteful number, since it uses less digits than its factorization.

1900349641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880343.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1900349641 is about 43592.9999082421. Note that the first 4 decimals coincide. The cubic root of 1900349641 is about 1238.6382990355.

It can be divided in two parts, 19003 and 49641, that added together give a square (68644 = 262²).

The spelling of 1900349641 in words is "one billion, nine hundred million, three hundred forty-nine thousand, six hundred forty-one".