1292201240 has 32 divisors (see below), whose sum is σ = 3171767760. Its totient is φ = 469891200.

The previous prime is 1292201237. The next prime is 1292201243. The reversal of 1292201240 is 421022921.

It is an interprime number because it is at equal distance from previous prime (1292201237) and next prime (1292201243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292201243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1467971 + ... + 1468850.

Almost surely, 2^1292201240 is an apocalyptic number.

1292201240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1292201240 is an abundant number, since it is smaller than the sum of its proper divisors (1879566520).

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

1292201240 is a wasteful number, since it uses less digits than its factorization.

1292201240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936843 (or 2936839 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1292201240 is about 35947.2007255085. The cubic root of 1292201240 is about 1089.2060655149.

The spelling of 1292201240 in words is "one billion, two hundred ninety-two million, two hundred one thousand, two hundred forty".