1451420190 has 96 divisors (see below), whose sum is σ = 4127760000. Its totient is φ = 350919360.

The previous prime is 1451420183. The next prime is 1451420209. The reversal of 1451420190 is 910241541.

1451420190 is a `hidden beast` number, since 1 + 4 + 51 + 420 + 190 = 666.

It is a super-2 number, since 2×1451420190² = 4213241135879272200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 413061 + ... + 416559.

It is an arithmetic number, because the mean of its divisors is an integer number (42997500).

Almost surely, 2^1451420190 is an apocalyptic number.

1451420190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1451420190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063880000).

1451420190 is an abundant number, since it is smaller than the sum of its proper divisors (2676339810).

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

1451420190 is a wasteful number, since it uses less digits than its factorization.

1451420190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942 (or 3939 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1451420190 is about 38097.5089736849. The cubic root of 1451420190 is about 1132.2206026840.

The spelling of 1451420190 in words is "one billion, four hundred fifty-one million, four hundred twenty thousand, one hundred ninety".