1420057550 has 24 divisors (see below), whose sum is σ = 2705733072. Its totient is φ = 554168000.

The previous prime is 1420057501. The next prime is 1420057571. The reversal of 1420057550 is 557500241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344306 + ... + 348405.

It is an arithmetic number, because the mean of its divisors is an integer number (112738878).

Almost surely, 2^1420057550 is an apocalyptic number.

1420057550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420057550 is a deficient number, since it is larger than the sum of its proper divisors (1285675522).

1420057550 is a wasteful number, since it uses less digits than its factorization.

1420057550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692764 (or 692759 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 1420057550 is about 37683.6509643108. The cubic root of 1420057550 is about 1124.0060488397.

Adding to 1420057550 its reverse (557500241), we get a palindrome (1977557791).

The spelling of 1420057550 in words is "one billion, four hundred twenty million, fifty-seven thousand, five hundred fifty".